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Diamond

(submitted by the website administration)

Single crystal diamond
Chemical composition: carbon (C)
Property Value in metric unit Value in US unit
Density 3.515*10³ kg/m³ 219 lb/ft³
Modulus of elasticity 900-1220 GPa 1.31*108-1.77*108 ksi
Modulus of elasticity in [111] direction 1220 GPa 1.77*108 ksi
Poisson ratio 0.1 0.1
Hardness (Vickers) 100 GPa 10200 HV
Tensile strength 0.5-1.4 GPa 72,500-203,000 ksi
Compressive strength >110 GPa >1.6*107 ksi
Thermal expansion at 300 K 1*10-6 ºCˉ¹ 0.56*10-6 in/(in* ºF)
Thermal expansion at 1300 K 5*10-6 ºCˉ¹ 2.78*10-6 in/(in* ºF)
Thermal conductivity at 300 K (Type I) 900 W/(m*K) 6240 BTU*in/(hr*ft²*ºF)
Thermal conductivity at 300 K (Type IIa) 2300 W/(m*K) 16,000 BTU*in/(hr*ft²*ºF)
Thermal conductivity at 473 K (Type IIa) >1000 W/(m*K) >7000 BTU*in/(hr*ft²*ºF)
Specific heat capacity at 300 K 500 J/(kg*K) 0.12 BTU/(lb*ºF)
Specific heat capacity at 700 K 1500 J/(kg*K) 0.36 BTU/(lb*ºF)
Refractive index 2.4 2.4
Dielectric constant 5.7 5.7
Dielectric strength 1000 KV/mm 25,000 V/mil

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diamond.txt · Last modified: 2023/12/14 by dmitri_kopeliovich
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